Pressure oil can



- 1,681,845 F. M. DILLEY ET AL PRESSURE OIL CAN Aug. Z1, 1928.

Filed Oct. 10, 1925 Patented Aug. 21, 1928.

FRED M. DILLEY AND CLAY F. HALLBERG, OF OELWEIN, IOWA.

PRESSURE OIL CAN'.

Application filed October 10, 1925. Serial No. 61,768.

This invention relates to lubricating or oiling devices, or means for discharging oil under pressure for oiling machinery and the like, andthe objectof the invention is to provide a. novel pressure oil can having a pump for storing air under pressure in the can; to provide a check valve and drain for the pump which serves to control the compressingr of the air in the body of the can for the purpose of forcing the oil therefrom and checks the return of the compressed air; to provide a spout having a novel form of valve for cont-rollingthe discharge or delivery of the oil from the can through the spout; to provide novel controlling means for said valve to open the same; to provide novel means for normally closing the valve; to provide a novel valve compensating means which will permit the valve to seat with sufcient pressure to prevent escape or leakage of the oil and at the same time prevent excess pressure thereon by the valve actuating member or spring which normally closes the valve, thus preventing injury to the valve head or point as well as facilitating minute control; and to generally improve the structure, operation and appearance of devices of this sort. c

`The invention consists with certain other novel combinations and arrangements of parts which will be hereinafter more fully described and pointed out in particular in the amended claims.

vFigure 1 is a side elevation partly broken away and in sect-ion of our novel pressure oil A can. Figure 2 is'an enlarged longitudinal sectional view of a portion of the spout, can and valve structure, and

Figure 3 is an enlarged side perspective VView of the valve proper and showing the compensating spring arrangement provided therefor.

Referring to the drawings in which correspending reference characters designate like parts throughout the several views, 5 designates a can of cylindrical or other shape having a rounded or semi-spherical-top portion 6,

provided with a filling neck or tube 7 at one side, closed by a knurled screw threaded cap or plug 8 with a. suitable interposedV packing washer 9 to render the same liquid tight.

The top of the can is provided wit-h an axial boss or central part 10 having an opening 11 communicating with the interior of f. the can to receive a discharge tube or pipe 12 extending down into the can to a point near the bottom and anchored in an opening or passage 13 constituting an outlet leading through a neck portion 14 of a casting 15 having a horizontal axial passage 16 leading from and communicating with the outlet passage 13 horizontally and at right angles thereto. The casting or casing has an internally threaded forward end 17 in which the adjacent reduced externally threaded end 18 of an enlargement 19 of a spout 20 is secured to extend horizontally therefrom. The spout has a reduced curved and downwardly extending nozzle 21 anchoredV thereto or otherwise formed therewith, as by means of a union or collar 22. However, it is to be understood that the parts may be connected in any suitable manner, the enlargement or collar 22 having an internal extension 23 projecting into the bore of the spout to form an internal valve seat 24. A valve stein 25 is disposed in the bore of the spout 20 indicated at 26', which lines up wit-h the passage 16, and guided through a reduced aperture 27 in the casting 15 and projects through a packing gland 28 having its reduced port-ion threaded in the end of the casting through an int-ernally threaded pocket therein as indicated at 29 with an interposed packing 30 to prevent the escape of oil therethrough, and around the stem.

The proj ectingend ofthe stem 25 is threaded as at 31 and has a knurled nut 32 threaded thereon between which and the wrench head of the gland 28 the upper forked end 33 of a bell crank lever or valve press 34 is engaged in such a manner as to straddle the stem. The bell crank lever or valve press 34 is pivoted at its angular portion on the pivot 35 engaged in apertures of spaced ears 36 of a bracket 37 mounted on or secured to the portion 6 of the can in line with the spout. the parts being preferably connected by soldering, welding or otherwise. Thus, it will be seen that the forked arm of the bell crank lever engages the valve stem and the nut 32 while the other arm 38 forms a plate adapted to be conveniently pressed for rocking the lever whereby the stem may be shifted longitudinally or axially to move the nut 32 away from the gland 28 for opening the valve as will be more fully described hereinafter.

The forward end of the stemfs provided with an enlargement 39 in which the ends of a link 40 are anchored. The outer or forward end of the link is closed and engaged with a second link 41 as indicated at 42 so as to form loo a positive connection outwardly when the links tend to separate, while permitting the links to move relatively in opposite directions independently of each otherI so that the link 41 may have compensating movement inwardly with respect to the link or the latter may have outward movement independently or' the link 41. However, an enlargement, stop or shoulder is provided on the link 40 at its inner end, the same being shown in the form of a washer 48 mounted over the end of the link 41 and between it and a cylindrical enlargement or head 44 secured to the outer ends oic the' link 41 as by means oi the outwardly directed and axially extending anchoring portions 45, an expansible coil spring 46 is mounted. 'lhis spring normally holds the enlargement or head 44 outwardly so that the closed ends of the links 40 and 41 are together as clearly shown in Figure 3 of the drawings. The enlargement is provided wit-h a socket 4T receiving the reduced shank of the valve head or point proper designated at 48 and which is preferably of conical or rusto-conical shape and made oi' cork, tibre or other suitable sott material adapted to engage the seat 24 and insure a positive leak-proof joint against the escape of theoil under pressure trom thecan.

Mounted at the rear of the can, at the juncture of the portions 5 and 6, is a bracket 49 having a ring or guide portion 50 to receive the cylinder 51 oi'l a pump. The lower end of the cylinder screws in an internally threaded flange 52 of an inlet pipe 58 which is joined in communication with the interior of the can 5 as by the threaded connection indicated at 54 through the passage 55. A piston 56 operates in the cylinder through the medium oit a piston rod 57 which .extends through a cap 58 suitably knurled and apertured' to receive the piston rod and threaded on the cylinder at its upper end if desired, as indicated at 59, while the upper end of the piston rod has a finger-piece or head 6() for the purpose of actuating the piston by reciprocal movement in the vertical cylinder adjacent the arm 38 ot the valve release or bell crank lever. The flange 52 forms the bottom of the cylinder and the interior of the cylinder communicates with the inlet passage through an interposed spring seated check valve 61 engaging upwardly against an internal seat 62 and held against the seatby a spring 63 disposed over a reduced port-ion or stein ot the valve and between the valve and a screw threaded plug 64 closing the lower endy of the vertical portion of" the passage 55 leading from the interior of the cylinder to the can.

Obviously the actuation of the piston will serve to torce air through the passage 55, automatically opening the valve 6l against the pressure of the spring 63 so that the body of the oil in the can ymay be placed under air pressure properly compressed to discharge the oil therefrom for delivery to the parts to be lubricated. The return oi the pressure is prevented by the spring 63 seating the valve 61 against the seat 62 and the action of the air thereagainst. it may also be pointed out that the cylinder 51 forms a handle in which the fingers straddlethe bracket 49, thus bringing the thumb or one linger over the arm 38 of the bell crank lever, which upon being depressed will serve to unseat the valve 48. The valve 48 is held normally seated by means of an expansible spring 65 mounted at the end of the passage 16 and engaging a collar 66 iXed on the stem 25 so as to exert outward pressure thereon. However, in order to prevent this strong spring pressure from too tightly seatingthe valve 48 or compressing the saine against the seat 24 in such a manner as to prevent minute opening or regulation or to expand and mutilate the valve 48, the compensating structure or spring and links heretofore described, is employed. The spring'46 permits the valve to give in'its seating action causing the links 40 and 41 to have relative longitudinal movement, the link 41 moving rearwardly over the link 40 to separate their closed ends, while at the same time permitting the proper seating of thev valve to insure a liquid tight joint. It will also be apparent that the removable head 48 may be renewed as desired, and by reason of its tapered formation, it will readily and positively seat against the seat 24 at the inner end of the nozzle 21. lts reduced shank portion 47 engages the socket in the enlargement 44 and this facilitates application or renewal of the valve head or end proper. The device may be eiciently used for lubricating machinery and the like and since the outlet or discharge tube 12 extends down to the bottom or adjacent to the bottom of the can 5, lit is obvious that articles floating on the top of the oil will be prevented from entering the same so that the air at the top ot the can will force downwardly and cause the discharge and delivery of the oil from the spout upon opening the valve. As soon as pressure is released from the lever 38,' the stem 25 will move inwardly under the action of the spring 65 to seat the valve 48 and cut off further discharge of the oil. i

While we have described our invention in a specic form, it is to be understood that various changes may be made in theconstruction and arrangement of the parts as well as in the proportion thereof without departing from the spirit and scope of the invention to be defined in the claims appended to and forming a part of this specification.

We claim:

1. In a .device of the character described, a spout, a'valve seat in the spout, a valve head, a link extending rearwardly from the valve head, a valve rod. means acting on the rod to normally seat the valve head, a link eX- tending forwardly from the valve rod and inter-locked with the valve head link, a washer on the valve head link adapted to abut against the valve stem link, and a compression spring interposed between the valve head and the washer.

2. In a device of the character described, a spout, a valve seat in the spout, a valve head having a conical compressible part adapted to cooperate with the seat, a link extending rearwardly from the valve head, a valve rod, a link extending forwardly from the valve rod and interlocked with the valve head link, a washer slidable on the valve head link, a compression spring interposed between the washer and the valve head, means for normally advancing the valve rod toward the valve head, and means for withdrawing the Valve rod and valve head from the valve seat including adjustable means controlling the normal position of the valve rod with respect to the valve hea-d.

3. A pressure oil can comprising a container, a discharge pipe projecting into the container from the top to a point adjacent the bottom thereof and having an outlet passage, a spout projecting horizontally from the upper end of the pipe and having a nozzle at its free end, an inwardly facing adjustable seat in the spout, a spring pressed stem movable in the spout and projecting from the rear end thereof, a valve head having a two part sliding connection with the Stem adjacent the free end thereof and adapted to move to an unseating position independently thereof by pressure of the valve head against its seat, and means for holding said valve seated under pressure less than the pressure of the stem spring.

4. In a device of the character described, a spout, a valve seat in the spout, a valve head, a link extending rearwardly from the valve head, spring means for exerting pressure on the head to normally seat the same, a valve rod, a. link extending forwardly from the valve rod and interlocked with the valve head link for sliding movement inwardly relative to the valve rod and limited against outward movement by engagement with the end of the valve rod, an enlargement on the inner end of the valve head link adapted to abut against the valve stem link, and a compression spring interposed between the valve head and the enlargement.

In testimony whereof we aix our signa.-

tures.

FRED M. DILLEY. CLAY F. HALLBERG. 

